Company Filing History:
Years Active: 2012-2014
Title: Toshiaki Oka: Innovator in Drive Systems and Fuse Detection
Introduction
Toshiaki Oka is a notable inventor based in Houston, TX, who has made significant contributions to the field of electrical engineering. With a total of three patents to his name, Oka has focused on developing advanced systems that enhance the efficiency and reliability of electrical drives and fuse detection mechanisms.
Latest Patents
Oka's latest patents include a multilevel regeneration drive system and a method for open fuse detection by neutral point shift. The multilevel regeneration drive system is designed for driving multi-phase motors, such as three-phase AC motors. This innovative system utilizes a transformer with a disconnected wye configuration on the secondary side and incorporates feedback control through the average or other combinations of DC bus voltages from inverters for each load phase.
The open fuse detection system provides a method for identifying a blown fuse in a three-phase line by comparing neutral points before and after the fuses. This system employs diode rectifier circuits to generate a DC output voltage when the neutral points are misaligned, and photocoupler circuits ensure electrical isolation during the signaling of a neutral point shift.
Career Highlights
Oka is currently employed at Toshiba International Corporation, where he continues to push the boundaries of innovation in electrical systems. His work has not only contributed to the company's portfolio but has also advanced the industry standards for drive systems and fuse detection technologies.
Collaborations
Throughout his career, Oka has collaborated with talented individuals such as Mike Daskalos and Takashi Morishita. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
Toshiaki Oka's contributions to the field of electrical engineering through his patents and collaborative efforts highlight his role as a key innovator. His work continues to influence the development of efficient and reliable electrical systems.
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